Effect of intradermal needle therapy at combined acupoints on patients’ gastrointestinal function following surgery for gastrointestinal tumors

BACKGROUND: Postoperative gastrointestinal function recovery is critical for rapid rehabilitation of patients with gastrointestinal tumors. Traditional Chinese medicine offers considerable advantages for gastrointestinal disease treatment. However, no study has reported the clinical efficacy of intradermal needle therapy (INT) at the Yuan-source, Luo-connecting, and He-sea points of the corresponding meridian for gastrointestinal function in patients following surgery for gastrointestinal tumors. AIM: To investigate the effect of INT at combined acupoints on patients’ gastrointestinal function following surgery for gastrointestinal tumors. METHODS: This randomized controlled trial was conducted at the Second Affiliated Hospital of Xi’an Jiaotong University on patients with diagnosed gastrointestinal cancer, no distant metastases or organ failure, and hospitalized for elective radical tumor resection, who did not receive preoperative radiotherapy or chemotherapy. Participants were randomly allocated to either the intervention (n = 32) or the control (n = 32) group. Participants in the control group received enhanced recovery care, while those in the intervention group received enhanced recovery care combined with INT at the Yuan-source, Luo-connecting, and He-sea points. After surgery, INT was performed immediately upon the patient's return to the ward, and continued for seven consecutive days. The independent samples t-test, chi-square test, and generalized estimating equations were used for data analysis. RESULTS: The participants’ ages ranged from 40 to 80 years (average 63 ± 10.1 years). Most participants underwent surgery for either gastric (43.8%) or colon cancer (39.1%) and had adenocarcinoma (87.5%). Significant differences were noted in time to first postoperative flatus passage (66 ± 27 h vs 103 ± 41 h, P < 0.001), time to first defecation (106 ± 44 h vs 153 ± 50 h, P < 0.001), and time to first oral feeding (73 ± 30 h vs 115 ± 38 h, P < 0.001) between the intervention and control groups. Gastrointestinal symptoms, including abdominal distension, nausea, and fatigue 48 h and 72 h after surgery, were significantly alleviated in the intervention group compared with that observed in the control group (P < 0.05). CONCLUSION: INT at the Yuan-source, Luo-connecting, and He-sea points can promote recovery of gastrointestinal function and ease gastrointestinal symptoms in patients following surgical resection of gastrointestinal tumors.